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<Title>Multi-Line Chart (1)</Title>
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<p class="heading0">ChartDirector 7.0 (Java Edition)</p>
<p class="heading1">Multi-Line Chart (1)</p>
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<img src="images/multiline.png" width='600' height='300'>
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This example demonstrates a chart with multiple lines of different styles. It also demonstrates using frame with rounded corners, title with glass shading effect, both vertical and horizontal grid lines, and a legend at the top of the plot area.<br><br>
<ul><li> The rounded frame is configured using <a href="BaseChart.setRoundedFrame.htm">BaseChart.setRoundedFrame</a>.<br><br>
<li> The glass shading effect of the title is defined using <a href="Chart.glassEffect.htm">Chart.glassEffect</a>, then applied to the title using <a href="Box.setBackground.htm">Box.setBackground</a> of the title <a href="TextBox.htm">TextBox</a> object.<br><br>
<li> Enable both vertical and horizontal grid lines using <a href="XYChart.setPlotArea.htm">XYChart.setPlotArea</a>.<br><br>
<li> Add a legend at the top of the chart using <a href="BaseChart.addLegend.htm">BaseChart.addLegend</a>.<br><br>
<li> Add an empty line layer using <a href="XYChart.addLineLayer2.htm">XYChart.addLineLayer2</a><br><br>
<li> Add multiple data sets to the line layer using <a href="Layer.addDataSet.htm">Layer.addDataSet</a>.<br><br>
<li> For the last line, the line color is a dash line color creating using <a href="BaseChart.dashLineColor.htm">BaseChart.dashLineColor</a>.<br><br>
<li> Set the line width for all lines in the layer using <a href="Layer.setLineWidth.htm">Layer.setLineWidth</a>. (To set the line width for one particular line, use <a href="DataSet.setLineWidth.htm">DataSet.setLineWidth</a>.)</ul>
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<p class="heading1a">Source Code Listing</p>
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<b>[JSP Version]</b> jspdemo/multiline.jsp
<div class='codeblock'><code class='pre'>&lt;%@page import="ChartDirector.*, java.util.*" %&gt;
&lt;%
// The data for the line chart
double[] data0 = {42, 49, 33, 38, 51, 46, 29, 41, 44, 57, 59, 52, 37, 34, 51, 56, 56, 60, 70, 76,
    63, 67, 75, 64, 51};
double[] data1 = {50, 55, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58, 59, 73, 77,
    84, 82, 80, 84, 98};
double[] data2 = {36, 28, 25, 33, 38, 20, 22, 30, 25, 33, 30, 24, 28, 15, 21, 26, 46, 42, 48, 45,
    43, 52, 64, 60, 70};

// The labels for the line chart
String[] labels = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14",
    "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"};

// Create an XYChart object of size 600 x 300 pixels, with a light blue (EEEEFF) background, black
// border, 1 pxiel 3D border effect and rounded corners
XYChart c = new XYChart(600, 300, 0xeeeeff, 0x000000, 1);
c.setRoundedFrame();

// Set the plotarea at (55, 58) and of size 520 x 195 pixels, with white background. Turn on both
// horizontal and vertical grid lines with light grey color (0xcccccc)
c.setPlotArea(55, 58, 520, 195, 0xffffff, -1, -1, 0xcccccc, 0xcccccc);

// Add a legend box at (50, 30) (top of the chart) with horizontal layout. Use 9pt Arial Bold font.
// Set the background and border color to Transparent.
c.addLegend(50, 30, false, "Arial Bold", 9).setBackground(Chart.Transparent);

// Add a title box to the chart using 15pt Times Bold Italic font, on a light blue (CCCCFF)
// background with glass effect. white (0xffffff) on a dark red (0x800000) background, with a 1
// pixel 3D border.
c.addTitle("Application Server Throughput", "Times New Roman Bold Italic", 15).setBackground(
    0xccccff, 0x000000, Chart.glassEffect());

// Add a title to the y axis
c.yAxis().setTitle("MBytes per hour");

// Set the labels on the x axis.
c.xAxis().setLabels(labels);

// Display 1 out of 3 labels on the x-axis.
c.xAxis().setLabelStep(3);

// Add a title to the x axis
c.xAxis().setTitle("Jun 12, 2006");

// Add a line layer to the chart
LineLayer layer = c.addLineLayer2();

// Set the default line width to 2 pixels
layer.setLineWidth(2);

// Add the three data sets to the line layer. For demo purpose, we use a dash line color for the
// last line
layer.addDataSet(data0, 0xff0000, "Server #1");
layer.addDataSet(data1, 0x008800, "Server #2");
layer.addDataSet(data2, c.dashLineColor(0x3333ff, Chart.DashLine), "Server #3");

// Output the chart
WebChartViewer viewer = new WebChartViewer(request, "chart1");
viewer.setChart(c, Chart.SVG);

// Include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("", "", "title='[{dataSetName}] Hour {xLabel}: {value} MBytes'"
    ));
%&gt;
&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;Multi-Line Chart (1)&lt;/title&gt;
    &lt;!-- Include ChartDirector Javascript Library to support chart interactions --&gt;
    &lt;script type="text/javascript" src="cdjcv.js"&gt;&lt;/script&gt;
&lt;/head&gt;
&lt;body style="margin:5px 0px 0px 5px"&gt;
    &lt;div style="font:bold 18pt verdana;"&gt;
        Multi-Line Chart (1)
    &lt;/div&gt;
    &lt;hr style="border:solid 1px #000080; background:#000080" /&gt;
    &lt;div style="font:10pt verdana; margin-bottom:1.5em"&gt;
        &lt;a href="viewsource.jsp?file=&lt;%=request.getServletPath()%&gt;"&gt;View Source Code&lt;/a&gt;
    &lt;/div&gt;
    &lt;!-- ****** Here is the chart image ****** --&gt;
    &lt;%= viewer.renderHTML(response) %&gt;
&lt;/body&gt;
&lt;/html&gt;</code></div>
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